II CONTENTS. 



Page. 



The characteristics of wine extract as a means of judging wine, Krug 613 



Vinegar and vinegar essence, Fresenius 613 



Formic acid as a preservative, Smith 613 



Determination of potash by perchlorate method, etc., Schei^ke and Kriiger. . . 613 



The detection of peat in commercial fertilizers, Street 613 



Determination of nitric acid in water and sewage, Klut 614 



Determination of solubility as a basis for judging soils, Kindell 614 



Determination of caustic lime by the use of a sugar solution, Hendrick 614 



Determination of carbon monoxid in atmospheric air, ^Morgan and McWhorter. 614 



International methods for analysis of agricultural products 614 



Official methods for the analysis of sugars, sirups, and confectionery 614 



A new distilling apparatus for nitrogen determinations, Schmidt 615 



METEOROLOGY — WATER. 



Eeport of the Chief of the AVeather Bureau, 1905-6 615 



Meteorological observations, Ostrander and Barry 615 



The weather of 1906, Wakerley 616 



Meteorological observations for 1906 at the Ploti Station, Boulatovitch 616 



Meteorological observations, Fawcett 616 



Meteorological observations, Bartlett 616 



The influence of forests upon wind velocity, Murat 616 



Precipitation in the Letzlingen moor, Schubert 617 



The rainfall in the Philippines, Saderra INIaso 617 



Composition of Barbados rainfall, D' Albuquerque and Bovell 617 



A contribution to the study of evaporation from water surfaces, Sutton 617 



Surface water supply of [different regions of the United Statesj , 1906 618 



Geology and water resources of the Bighorn basin, Wyoming, Fisher 618 



Underground waters, Ototzki 618 



Hydrological investigations from the agricultural standpoint, D'Andrimont. . . 618 



Investigations on water, Vandevelde 618 



New apparatus for the sterilization of drinking water by heat *. 619 



Manufactured ice, Meloy -- 619 



Sewage disposal in the country, Sommerville 619 



SOI LS — FERTI LIZERS. 



The soil, Dumont 619 



The practical importance of chemical analysis of soils, von Sigmond 619 



The use of soil surveys, Bonsteel 619 



The agricultural soils of the territory of Grotte di Castro, Orzi 619 



Exaininations of soils from German East Africa, Lommel 619 



Physical-chemical processes in the formation of soils, Rohland 620 



Distribution of plant food in soil particles of different sizes, Puchner 620 



Influence of fallow culture on soil moisture, Nazarov 620 



Investigations on the behavior of fallows, Kriiger and Heinze 621 



Organic constituents of soils in relation to fertility, Schreiner et ;;! 621 



On humus acids, Van Schermbeck ' 622 



Factors in the ammonification of soil nitrogen, Lipman 623 



Losses of ammonia from culture solutions, Lipman and Brown 623 



Studies on nitrification in the soil of Egypt, Roche 624 



The absence of nitrification in forest soils, Grandeau 624 



On nitrogen-fixing bacteria, II, Lohnis and Pillai 624 



Inoculation of seeds by methods of Hiltner and Moore, Eickemeyer 624 



Experiments with Nitragin, Macias 624 



Influence of fertilizers on fixation of nitrogen, Wilfarth and Wimmer 624 



Action of poisonous substances on bacterial flora of soils, Eickemeyer 625 



The increase of crop yields by stimulants, HoUrung 625 



Soils and manures, Kirkham 625 



Cattle manure, Clouston 625 



The use of fertilizers on southern Indiana soils, Goss 625 



Plant nutrition studies, Voorhees and Lipman 626 



The predominant role of nitrogen in the productiveness of soils, Grandeau 626 



Investigations of nitrogenous materials, Voorhees and Lipman 626 



Lime nitrogen as a fertilizer for cultivated plants, Wagner et al 627 



Ammonium sulphate as a fertilizer, Hunter 628 



